With Bryce Harper expected to move from center field to left field, left fielder Mike Morse likely will move to first base. Adam LaRoche, who was the Nationals' first baseman in 2012, is a free agent.

Although Washington would like to re-sign LaRoche, it might have to trade Morse in order to do so. And The Washington Post reports the Nationals want to offer LaRoche no more than a two-year deal.

The Red Sox are in the market for a first baseman and have been linked to free agent Mike Napoli. However, The Boston Globe speculates they now could turn their attention to LaRoche, who briefly played for the team in 2009.